Page F-1
Appendix F
Statistical Comparison of Measured
Values and Modeled Values for
Flow and Water Quality
Used in the Chollas Creek Metals Total Maximum Daily Load
California Regional Water Quality Control Board, San Diego Region
Page F-1
Introduction
This appendix compares measured flow and water quality values against those generated from model runs. Data are presented side-by-side for direct comparison. Simple statistical comparisons are also offered.
Flow
Table 1 lists all modeled and measured values from November 1, 2001 to December 30, 2003 for the Chollas Creek Watershed. Table 2 shows all observed values above 2.28 cubic feet per second (cfs), which is the definition of wet weather conditions, and the corresponding modeled average flows. Also in Table 2 are the percent and actual differences. Table 3 gives the total volume per day in cubic feet (cf) for corresponding dates in Table 2. Figure 1 plots volume per day from the model versus volume per day from the observed values. The R2 value is 0.7035 for 26 data pairs. Table 4 gives the total volume for the 28 days in liters for modeled and observed values and the percent differences and actual differences between the two. Table 5 gives summary statistics of the 26 values in both the modeled and observed value data sets and from the percent differences and actual differences.
Water Quality
Tables 6 and 7 show the measured water quality data and the corresponding model results. Tables 8 and 9 show the percent and actual differences of the water quality data that corresponds with flows over 2.28 cfs. Tables 10 and 11 show the five dates that both measured flow and water quality data were available. The loads per day were calculated and compared, by percent and actual difference, with the model values for the same days.
Page F-2
Table 1. All modeled and measured values. Observed values have approximately the same
significant figures as the original values in copermittees reports.
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2001 11 1 11/1/01 0.000
2001 11 2 11/2/01 0.000
2001 11 3 11/3/01 0.000
2001 11 4 11/4/01 6.723
2001 11 5 11/5/01 13.326
2001 11 6 11/6/01 0.082
2001 11 7 11/7/01 0.080
2001 11 8 11/8/01 0.059
2001 11 9 11/9/01 0.060
2001 11 10 11/10/01 0.069
2001 11 11 11/11/01 0.059
2001 11 12 11/12/01 10.591
2001 11 13 11/13/01 1.907
2001 11 14 11/14/01 0.099
2001 11 15 11/15/01 0.088
2001 11 16 11/16/01 0.090
2001 11 17 11/17/01 0.091
2001 11 18 11/18/01 0.087
2001 11 19 11/19/01 0.074
2001 11 20 11/20/01 0.075
2001 11 21 11/21/01 0.076
2001 11 22 11/22/01 0.077
2001 11 23 11/23/01 0.074
2001 11 24 11/24/01 15.867
2001 11 25 11/25/01 0.791
2001 11 26 11/26/01 0.133
2001 11 27 11/27/01 0.106
2001 11 28 11/28/01 0.114 0
2001 11 29 11/29/01 2.801 18
2001 11 30 11/30/01 0.207
2001 12 1 12/1/01 0.126
2001 12 2 12/2/01 0.112
2001 12 3 12/3/01 0.183
2001 12 4 12/4/01 0.570
2001 12 5 12/5/01 0.115
2001 12 6 12/6/01 0.086
2001 12 7 12/7/01 0.047
2001 12 8 12/8/01 0.005
2001 12 9 12/9/01 0.070
2001 12 10 12/10/01 0.085
2001 12 11 12/11/01 0.073
2001 12 12 12/12/01 0.073
2001 12 13 12/13/01 0.070
Page F-3
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2001 12 14 12/14/01 0.082
2001 12 15 12/15/01 0.061
2001 12 16 12/16/01 0.058
2001 12 17 12/17/01 0.052
2001 12 18 12/18/01 0.053
2001 12 19 12/19/01 0.048
2001 12 20 12/20/01 0.054
2001 12 21 12/21/01 11.824
2001 12 22 12/22/01 0.134
2001 12 23 12/23/01 0.108
2001 12 24 12/24/01 0.081
2001 12 25 12/25/01 0.082
2001 12 26 12/26/01 0.078
2001 12 27 12/27/01 0.079
2001 12 28 12/28/01 0.084
2001 12 29 12/29/01 0.080
2001 12 30 12/30/01 0.073
2001 12 31 12/31/01 0.084
2002 1 1 1/1/02 0.070
2002 1 2 1/2/02 0.064
2002 1 3 1/3/02 5.539
2002 1 4 1/4/02 0.084
2002 1 5 1/5/02 0.077
2002 1 6 1/6/02 0.068
2002 1 7 1/7/02 0.054
2002 1 8 1/8/02 0.055
2002 1 9 1/9/02 0.067
2002 1 10 1/10/02 0.054
2002 1 11 1/11/02 0.047
2002 1 12 1/12/02 0.031
2002 1 13 1/13/02 0.044
2002 1 14 1/14/02 0.048
2002 1 15 1/15/02 0.054
2002 1 16 1/16/02 0.044
2002 1 17 1/17/02 0.042
2002 1 18 1/18/02 0.040
2002 1 19 1/19/02 0.036
2002 1 20 1/20/02 0.037
2002 1 21 1/21/02 0.033
2002 1 22 1/22/02 0.034
2002 1 23 1/23/02 0.027
2002 1 24 1/24/02 0.024
2002 1 25 1/25/02 0.026
2002 1 26 1/26/02 0.028
2002 1 27 1/27/02 0.027
Page F-4
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2002 1 28 1/28/02 0.026
2002 1 29 1/29/02 4.119
2002 1 30 1/30/02 0.057
2002 1 31 1/31/02 0.043
2002 2 1 2/1/02 0.035
2002 2 2 2/2/02 0.032
2002 2 3 2/3/02 0.032
2002 2 4 2/4/02 0.029
2002 2 5 2/5/02 0.026
2002 2 6 2/6/02 0.028
2002 2 7 2/7/02 0.027
2002 2 8 2/8/02 0.028
2002 2 9 2/9/02 0.013
2002 2 10 2/10/02 0.000
2002 2 11 2/11/02 0.013
2002 2 12 2/12/02 0.017
2002 2 13 2/13/02 0.020
2002 2 14 2/14/02 0.020
2002 2 15 2/15/02 0.019
2002 2 16 2/16/02 0.021
2002 2 17 2/17/02 7.614 3
2002 2 18 2/18/02 0.401
2002 2 19 2/19/02 0.055
2002 2 20 2/20/02 0.041
2002 2 21 2/21/02 0.021
2002 2 22 2/22/02 0.012
2002 2 23 2/23/02 0.036
2002 2 24 2/24/02 0.034
2002 2 25 2/25/02 0.032
2002 2 26 2/26/02 0.015
2002 2 27 2/27/02 0.024
2002 2 28 2/28/02 0.029
2002 3 1 3/1/02 0.028
2002 3 2 3/2/02 0.023
2002 3 3 3/3/02 0.021
2002 3 4 3/4/02 0.021
2002 3 5 3/5/02 0.023
2002 3 6 3/6/02 0.024
2002 3 7 3/7/02 0.023 7
2002 3 8 3/8/02 0.021 1
2002 3 9 3/9/02 0.018
2002 3 10 3/10/02 0.018
2002 3 11 3/11/02 0.018
2002 3 12 3/12/02 0.016
2002 3 13 3/13/02 0.018
Page F-5
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2002 3 14 3/14/02 0.016
2002 3 15 3/15/02 0.014
2002 3 16 3/16/02 0.014
2002 3 17 3/17/02 14.441
2002 3 18 3/18/02 22.644
2002 3 19 3/19/02 0.136
2002 3 20 3/20/02 0.124
2002 3 21 3/21/02 0.113
2002 3 22 3/22/02 0.107
2002 3 23 3/23/02 0.110
2002 3 24 3/24/02 0.098
2002 3 25 3/25/02 0.093
2002 3 26 3/26/02 0.089
2002 3 27 3/27/02 0.097
2002 3 28 3/28/02 0.122
2002 3 29 3/29/02 0.083
2002 3 30 3/30/02 0.085
2002 3 31 3/31/02 0.071
2002 4 1 4/1/02 0.068
2002 4 2 4/2/02 0.069
2002 4 3 4/3/02 0.071
2002 4 4 4/4/02 0.063
2002 4 5 4/5/02 0.069
2002 4 6 4/6/02 0.058
2002 4 7 4/7/02 0.052
2002 4 8 4/8/02 0.053
2002 4 9 4/9/02 0.051
2002 4 10 4/10/02 0.045
2002 4 11 4/11/02 0.043
2002 4 12 4/12/02 0.039
2002 4 13 4/13/02 0.039
2002 4 14 4/14/02 0.035
2002 4 15 4/15/02 0.039
2002 4 16 4/16/02 0.035
2002 4 17 4/17/02 0.036
2002 4 18 4/18/02 0.032
2002 4 19 4/19/02 0.030
2002 4 20 4/20/02 0.027
2002 4 21 4/21/02 0.026
2002 4 22 4/22/02 0.023
2002 4 23 4/23/02 0.024
2002 4 24 4/24/02 0.031
2002 4 25 4/25/02 0.022
2002 4 26 4/26/02 0.026
2002 4 27 4/27/02 0.022
Page F-6
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2002 4 28 4/28/02 0.019
2002 4 29 4/29/02 0.017
2002 4 30 4/30/02 0.018
2002 5 1 5/1/02 0.017
2002 5 2 5/2/02 0.015
2002 5 3 5/3/02 0.015
2002 5 4 5/4/02 0.015
2002 5 5 5/5/02 0.015
2002 5 6 5/6/02 0.015
2002 5 7 5/7/02 0.017
2002 5 8 5/8/02 0.013
2002 5 9 5/9/02 0.012
2002 5 10 5/10/02 0.012
2002 5 11 5/11/02 0.011
2002 5 12 5/12/02 0.009
2002 5 13 5/13/02 0.007
2002 5 14 5/14/02 0.009
2002 5 15 5/15/02 0.010
2002 5 16 5/16/02 0.010
2002 5 17 5/17/02 0.009
2002 5 18 5/18/02 0.010
2002 5 19 5/19/02 0.009
2002 5 20 5/20/02 0.007
2002 5 21 5/21/02 0.007
2002 5 22 5/22/02 0.006
2002 5 23 5/23/02 0.006
2002 5 24 5/24/02 0.006
2002 5 25 5/25/02 0.007
2002 5 26 5/26/02 0.006
2002 5 27 5/27/02 0.006
2002 5 28 5/28/02 0.005
2002 5 29 5/29/02 0.005
2002 5 30 5/30/02 0.005
2002 5 31 5/31/02 0.004
2002 6 1 6/1/02 0.005
2002 6 2 6/2/02 0.004
2002 6 3 6/3/02 0.004
2002 6 4 6/4/02 0.004
2002 6 5 6/5/02 0.004
2002 6 6 6/6/02 0.003
2002 6 7 6/7/02 0.003
2002 6 8 6/8/02 0.003
2002 6 9 6/9/02 0.004
2002 6 10 6/10/02 0.004
2002 6 11 6/11/02 0.003
Page F-7
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2002 6 12 6/12/02 0.003
2002 6 13 6/13/02 0.003
2002 6 14 6/14/02 0.002
2002 6 15 6/15/02 0.002
2002 6 16 6/16/02 0.002
2002 6 17 6/17/02 0.002
2002 6 18 6/18/02 0.002
2002 6 19 6/19/02 0.002
2002 6 20 6/20/02 0.002
2002 6 21 6/21/02 0.002
2002 6 22 6/22/02 0.002
2002 6 23 6/23/02 0.002
2002 6 24 6/24/02 0.002
2002 6 25 6/25/02 0.002
2002 6 26 6/26/02 0.002
2002 6 27 6/27/02 0.001
2002 6 28 6/28/02 0.001
2002 6 29 6/29/02 0.001
2002 6 30 6/30/02 0.001
2002 7 1 7/1/02 0.001
2002 7 2 7/2/02 0.001
2002 7 3 7/3/02 0.001
2002 7 4 7/4/02 0.001
2002 7 5 7/5/02 0.001
2002 7 6 7/6/02 0.001
2002 7 7 7/7/02 0.001
2002 7 8 7/8/02 0.001
2002 7 9 7/9/02 0.001
2002 7 10 7/10/02 0.001
2002 7 11 7/11/02 0.001
2002 7 12 7/12/02 0.001
2002 7 13 7/13/02 0.001
2002 7 14 7/14/02 0.001
2002 7 15 7/15/02 0.001
2002 7 16 7/16/02 0.001
2002 7 17 7/17/02 0.001
2002 7 18 7/18/02 0.001
2002 7 19 7/19/02 0.001
2002 7 20 7/20/02 0.001
2002 7 21 7/21/02 0.001
2002 7 22 7/22/02 0.001
2002 7 23 7/23/02 0.000
2002 7 24 7/24/02 0.000
2002 7 25 7/25/02 0.000
2002 7 26 7/26/02 0.000
Page F-8
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2002 7 27 7/27/02 0.000
2002 7 28 7/28/02 0.000
2002 7 29 7/29/02 0.000
2002 7 30 7/30/02 0.000
2002 7 31 7/31/02 0.000
2002 8 1 8/1/02 0.000
2002 8 2 8/2/02 0.000
2002 8 3 8/3/02 0.000
2002 8 4 8/4/02 0.000
2002 8 5 8/5/02 0.000
2002 8 6 8/6/02 0.000
2002 8 7 8/7/02 0.000
2002 8 8 8/8/02 0.000
2002 8 9 8/9/02 0.000
2002 8 10 8/10/02 0.000
2002 8 11 8/11/02 0.000
2002 8 12 8/12/02 0.000
2002 8 13 8/13/02 0.000
2002 8 14 8/14/02 0.000
2002 8 15 8/15/02 0.000
2002 8 16 8/16/02 0.000
2002 8 17 8/17/02 0.000
2002 8 18 8/18/02 0.000
2002 8 19 8/19/02 0.000
2002 8 20 8/20/02 0.000
2002 8 21 8/21/02 0.000
2002 8 22 8/22/02 0.000
2002 8 23 8/23/02 0.000
2002 8 24 8/24/02 0.000
2002 8 25 8/25/02 0.000
2002 8 26 8/26/02 0.000
2002 8 27 8/27/02 0.000
2002 8 28 8/28/02 0.000
2002 8 29 8/29/02 0.000
2002 8 30 8/30/02 0.000
2002 8 31 8/31/02 0.000
2002 9 1 9/1/02 0.000
2002 9 2 9/2/02 0.000
2002 9 3 9/3/02 0.000
2002 9 4 9/4/02 0.000
2002 9 5 9/5/02 0.000
2002 9 6 9/6/02 2.065
2002 9 7 9/7/02 23.162
2002 9 8 9/8/02 0.069
2002 9 9 9/9/02 0.062
Page F-9
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2002 9 10 9/10/02 0.055
2002 9 11 9/11/02 0.057
2002 9 12 9/12/02 0.054
2002 9 13 9/13/02 0.048
2002 9 14 9/14/02 0.046
2002 9 15 9/15/02 0.044
2002 9 16 9/16/02 0.045
2002 9 17 9/17/02 0.044
2002 9 18 9/18/02 0.045
2002 9 19 9/19/02 0.037
2002 9 20 9/20/02 0.038
2002 9 21 9/21/02 0.037
2002 9 22 9/22/02 0.033
2002 9 23 9/23/02 0.031
2002 9 24 9/24/02 0.030
2002 9 25 9/25/02 0.031
2002 9 26 9/26/02 0.029
2002 9 27 9/27/02 0.030
2002 9 28 9/28/02 0.033
2002 9 29 9/29/02 0.030
2002 9 30 9/30/02 0.028
2002 10 1 10/1/02 0.027
2002 10 2 10/2/02 0.023
2002 10 3 10/3/02 0.022
2002 10 4 10/4/02 0.021
2002 10 5 10/5/02 0.019
2002 10 6 10/6/02 0.019
2002 10 7 10/7/02 0.017
2002 10 8 10/8/02 0.018
2002 10 9 10/9/02 0.017
2002 10 10 10/10/02 0.017
2002 10 11 10/11/02 0.017
2002 10 12 10/12/02 0.019
2002 10 13 10/13/02 0.015
2002 10 14 10/14/02 0.016
2002 10 15 10/15/02 0.016
2002 10 16 10/16/02 0.016
2002 10 17 10/17/02 0.016
2002 10 18 10/18/02 0.015
2002 10 19 10/19/02 0.014
2002 10 20 10/20/02 0.012
2002 10 21 10/21/02 0.013
2002 10 22 10/22/02 0.012
2002 10 23 10/23/02 0.011
2002 10 24 10/24/02 0.011
Page F-10
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2002 10 25 10/25/02 0.011
2002 10 26 10/26/02 0.010
2002 10 27 10/27/02 0.009
2002 10 28 10/28/02 0.009
2002 10 29 10/29/02 0.009
2002 10 30 10/30/02 0.008
2002 10 31 10/31/02 0.008
2002 11 1 11/1/02 0.008 0
2002 11 2 11/2/02 0.007 0
2002 11 3 11/3/02 0.006 0
2002 11 4 11/4/02 0.007 0
2002 11 5 11/5/02 0.006 0
2002 11 6 11/6/02 0.006 0
2002 11 7 11/7/02 0.006 0
2002 11 8 11/8/02 3.241 35
2002 11 9 11/9/02 8.193 43
2002 11 10 11/10/02 0.967 13
2002 11 11 11/11/02 0.048
2002 11 12 11/12/02 0.017
2002 11 13 11/13/02 0.035
2002 11 14 11/14/02 0.032
2002 11 15 11/15/02 0.010
2002 11 16 11/16/02 0.010
2002 11 17 11/17/02 0.030
2002 11 18 11/18/02 0.021
2002 11 19 11/19/02 0.019
2002 11 20 11/20/02 0.014
2002 11 21 11/21/02 0.011
2002 11 22 11/22/02 0.023
2002 11 23 11/23/02 0.026
2002 11 24 11/24/02 0.024
2002 11 25 11/25/02 0.016
2002 11 26 11/26/02 0.013
2002 11 27 11/27/02 0.009
2002 11 28 11/28/02 0.009
2002 11 29 11/29/02 0.020
2002 11 30 11/30/02 0.018
2002 12 1 12/1/02 0.019
2002 12 2 12/2/02 0.017
2002 12 3 12/3/02 0.017
2002 12 4 12/4/02 0.015
2002 12 5 12/5/02 0.014
2002 12 6 12/6/02 0.013
2002 12 7 12/7/02 0.014
2002 12 8 12/8/02 0.013
Page F-11
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2002 12 9 12/9/02 0.013
2002 12 10 12/10/02 0.013
2002 12 11 12/11/02 0.012
2002 12 12 12/12/02 0.011
2002 12 13 12/13/02 0.011 0
2002 12 14 12/14/02 0.011 0
2002 12 15 12/15/02 0.010 0
2002 12 16 12/16/02 0.010 30
2002 12 17 12/17/02 0.010 0
2002 12 18 12/18/02 0.009 0
2002 12 19 12/19/02 0.008 5
2002 12 20 12/20/02 0.010 0
2002 12 21 12/21/02 0.009 0
2002 12 22 12/22/02 0.008 0
2002 12 23 12/23/02 0.007 0
2002 12 24 12/24/02 0.008 0
2002 12 25 12/25/02 0.007 0
2002 12 26 12/26/02 0.007 0
2002 12 27 12/27/02 0.006 0
2002 12 28 12/28/02 0.006 0
2002 12 29 12/29/02 0.006 0
2002 12 30 12/30/02 0.006 0
2002 12 31 12/31/02 0.005 0
2003 1 1 1/1/03 0.004 0
2003 1 2 1/2/03 0.004 0
2003 1 3 1/3/03 0.004 0
2003 1 4 1/4/03 0.004 0
2003 1 5 1/5/03 0.004 0
2003 1 6 1/6/03 0.003 0
2003 1 7 1/7/03 0.003 0
2003 1 8 1/8/03 0.003 0
2003 1 9 1/9/03 0.003 0
2003 1 10 1/10/03 0.003 0
2003 1 11 1/11/03 0.003
2003 1 12 1/12/03 0.003
2003 1 13 1/13/03 0.003
2003 1 14 1/14/03 0.002
2003 1 15 1/15/03 0.002
2003 1 16 1/16/03 0.002
2003 1 17 1/17/03 0.002
2003 1 18 1/18/03 0.002
2003 1 19 1/19/03 0.002
2003 1 20 1/20/03 0.002
2003 1 21 1/21/03 0.002
2003 1 22 1/22/03 0.002
Page F-12
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2003 1 23 1/23/03 0.001
2003 1 24 1/24/03 0.001
2003 1 25 1/25/03 0.001
2003 1 26 1/26/03 0.001
2003 1 27 1/27/03 0.001
2003 1 28 1/28/03 0.001
2003 1 29 1/29/03 0.001
2003 1 30 1/30/03 0.001
2003 1 31 1/31/03 0.001
2003 2 1 2/1/03 0.001
2003 2 2 2/2/03 0.001
2003 2 3 2/3/03 0.001
2003 2 4 2/4/03 0.001
2003 2 5 2/5/03 0.001
2003 2 6 2/6/03 0.001
2003 2 7 2/7/03 0.001 0
2003 2 8 2/8/03 0.001
2003 2 9 2/9/03 0.001
2003 2 10 2/10/03 0.001
2003 2 11 2/11/03 50.308 59
2003 2 12 2/12/03 153.553
2003 2 13 2/13/03 116.327
2003 2 14 2/14/03 55.564
2003 2 15 2/15/03 2.439
2003 2 16 2/16/03 2.031
2003 2 17 2/17/03 1.739
2003 2 18 2/18/03 1.538
2003 2 19 2/19/03 1.410
2003 2 20 2/20/03 1.244
2003 2 21 2/21/03 1.120
2003 2 22 2/22/03 1.042
2003 2 23 2/23/03 0.943
2003 2 24 2/24/03 0.866 0
2003 2 25 2/25/03 190.710 132
2003 2 26 2/26/03 28.383 13
2003 2 27 2/27/03 31.744 86
2003 2 28 2/28/03 8.011 31
2003 3 1 3/1/03 5.550 0
2003 3 2 3/2/03 4.193 10
2003 3 3 3/3/03 3.367 2
2003 3 4 3/4/03 2.781 31
2003 3 5 3/5/03 2.912 45
2003 3 6 3/6/03 2.097 5
2003 3 7 3/7/03 1.839 12
2003 3 8 3/8/03 1.629 20
Page F-13
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2003 3 9 3/9/03 1.481 17
2003 3 10 3/10/03 1.373 12
2003 3 11 3/11/03 1.279 8
2003 3 12 3/12/03 1.164 8
2003 3 13 3/13/03 1.088 18
2003 3 14 3/14/03 1.018 10
2003 3 15 3/15/03 96.332
2003 3 16 3/16/03 51.539
2003 3 17 3/17/03 5.526
2003 3 18 3/18/03 4.174
2003 3 19 3/19/03 3.297
2003 3 20 3/20/03 2.713
2003 3 21 3/21/03 2.300
2003 3 22 3/22/03 1.996
2003 3 23 3/23/03 1.824
2003 3 24 3/24/03 1.650
2003 3 25 3/25/03 1.493
2003 3 26 3/26/03 1.389
2003 3 27 3/27/03 1.301
2003 3 28 3/28/03 1.188
2003 3 29 3/29/03 1.114
2003 3 30 3/30/03 1.040
2003 3 31 3/31/03 1.141
2003 4 1 4/1/03 0.974
2003 4 2 4/2/03 0.920
2003 4 3 4/3/03 0.886
2003 4 4 4/4/03 0.849
2003 4 5 4/5/03 0.805
2003 4 6 4/6/03 0.765
2003 4 7 4/7/03 0.705
2003 4 8 4/8/03 0.636
2003 4 9 4/9/03 0.612
2003 4 10 4/10/03 0.603
2003 4 11 4/11/03 0.567
2003 4 12 4/12/03 0.523
2003 4 13 4/13/03 0.504
2003 4 14 4/14/03 127.782
2003 4 15 4/15/03 6.659
2003 4 16 4/16/03 1.486
2003 4 17 4/17/03 23.888
2003 4 18 4/18/03 1.572
2003 4 19 4/19/03 1.378
2003 4 20 4/20/03 1.250
2003 4 21 4/21/03 1.163
2003 4 22 4/22/03 1.095
Page F-14
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2003 4 23 4/23/03 1.018
2003 4 24 4/24/03 0.941
2003 4 25 4/25/03 0.882
2003 4 26 4/26/03 0.836
2003 4 27 4/27/03 0.793
2003 4 28 4/28/03 0.738
2003 4 29 4/29/03 0.704
2003 4 30 4/30/03 0.799
2003 5 1 5/1/03 0.639
2003 5 2 5/2/03 0.601
2003 5 3 5/3/03 21.329
2003 5 4 5/4/03 0.717
2003 5 5 5/5/03 0.634
2003 5 6 5/6/03 0.602
2003 5 7 5/7/03 0.564
2003 5 8 5/8/03 0.534
2003 5 9 5/9/03 0.506
2003 5 10 5/10/03 0.479
2003 5 11 5/11/03 0.442
2003 5 12 5/12/03 0.416
2003 5 13 5/13/03 0.390
2003 5 14 5/14/03 0.378
2003 5 15 5/15/03 0.360
2003 5 16 5/16/03 0.338
2003 5 17 5/17/03 0.322
2003 5 18 5/18/03 0.306
2003 5 19 5/19/03 0.289
2003 5 20 5/20/03 0.272
2003 5 21 5/21/03 0.255
2003 5 22 5/22/03 0.245
2003 5 23 5/23/03 0.236
2003 5 24 5/24/03 0.225
2003 5 25 5/25/03 0.212
2003 5 26 5/26/03 0.201
2003 5 27 5/27/03 0.189
2003 5 28 5/28/03 0.179
2003 5 29 5/29/03 0.172
2003 5 30 5/30/03 0.164
2003 5 31 5/31/03 0.197
2003 6 1 6/1/03 0.152
2003 6 2 6/2/03 0.145
2003 6 3 6/3/03 0.136
2003 6 4 6/4/03 0.129
2003 6 5 6/5/03 0.122
2003 6 6 6/6/03 0.116
Page F-15
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2003 6 7 6/7/03 0.110
2003 6 8 6/8/03 0.104
2003 6 9 6/9/03 0.099
2003 6 10 6/10/03 0.090
2003 6 11 6/11/03 0.085
2003 6 12 6/12/03 0.080
2003 6 13 6/13/03 0.075
2003 6 14 6/14/03 0.070
2003 6 15 6/15/03 0.066
2003 6 16 6/16/03 0.061
2003 6 17 6/17/03 0.057
2003 6 18 6/18/03 0.053
2003 6 19 6/19/03 0.050
2003 6 20 6/20/03 0.046
2003 6 21 6/21/03 0.042
2003 6 22 6/22/03 0.039
2003 6 23 6/23/03 0.035
2003 6 24 6/24/03 0.032
2003 6 25 6/25/03 0.028
2003 6 26 6/26/03 0.025
2003 6 27 6/27/03 0.021
2003 6 28 6/28/03 0.018
2003 6 29 6/29/03 0.014
2003 6 30 6/30/03 0.012
2003 7 1 7/1/03 0.010
2003 7 2 7/2/03 0.009
2003 7 3 7/3/03 0.008
2003 7 4 7/4/03 0.008
2003 7 5 7/5/03 0.007
2003 7 6 7/6/03 0.007
2003 7 7 7/7/03 0.007
2003 7 8 7/8/03 0.007
2003 7 9 7/9/03 0.006
2003 7 10 7/10/03 0.007
2003 7 11 7/11/03 0.007
2003 7 12 7/12/03 0.007
2003 7 13 7/13/03 0.006
2003 7 14 7/14/03 0.006
2003 7 15 7/15/03 0.006
2003 7 16 7/16/03 0.006
2003 7 17 7/17/03 0.005
2003 7 18 7/18/03 0.005
2003 7 19 7/19/03 0.005
2003 7 20 7/20/03 0.005
2003 7 21 7/21/03 0.004
Page F-16
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2003 7 22 7/22/03 0.004
2003 7 23 7/23/03 0.004
2003 7 24 7/24/03 0.004
2003 7 25 7/25/03 0.004
2003 7 26 7/26/03 0.004
2003 7 27 7/27/03 0.003
2003 7 28 7/28/03 0.003
2003 7 29 7/29/03 0.003
2003 7 30 7/30/03 0.003
2003 7 31 7/31/03 0.003
2003 8 1 8/1/03 0.003
2003 8 2 8/2/03 0.003
2003 8 3 8/3/03 0.003
2003 8 4 8/4/03 0.002
2003 8 5 8/5/03 0.002
2003 8 6 8/6/03 0.002
2003 8 7 8/7/03 0.002
2003 8 8 8/8/03 0.002
2003 8 9 8/9/03 0.002
2003 8 10 8/10/03 0.002
2003 8 11 8/11/03 0.002
2003 8 12 8/12/03 0.002
2003 8 13 8/13/03 0.002
2003 8 14 8/14/03 0.002
2003 8 15 8/15/03 0.002
2003 8 16 8/16/03 0.001
2003 8 17 8/17/03 0.001
2003 8 18 8/18/03 0.001
2003 8 19 8/19/03 0.001
2003 8 20 8/20/03 0.001
2003 8 21 8/21/03 0.001
2003 8 22 8/22/03 0.001
2003 8 23 8/23/03 0.001
2003 8 24 8/24/03 0.001
2003 8 25 8/25/03 0.001
2003 8 26 8/26/03 0.001
2003 8 27 8/27/03 0.001
2003 8 28 8/28/03 0.001
2003 8 29 8/29/03 0.001
2003 8 30 8/30/03 0.001
2003 8 31 8/31/03 0.001
2003 9 1 9/1/03 0.001
2003 9 2 9/2/03 0.001
2003 9 3 9/3/03 0.001
2003 9 4 9/4/03 0.001
Page F-17
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2003 9 5 9/5/03 0.001
2003 9 6 9/6/03 0.001
2003 9 7 9/7/03 0.001
2003 9 8 9/8/03 0.001
2003 9 9 9/9/03 0.001
2003 9 10 9/10/03 0.001
2003 9 11 9/11/03 0.000
2003 9 12 9/12/03 0.000
2003 9 13 9/13/03 0.000
2003 9 14 9/14/03 0.000
2003 9 15 9/15/03 0.000
2003 9 16 9/16/03 0.000
2003 9 17 9/17/03 0.000
2003 9 18 9/18/03 0.000
2003 9 19 9/19/03 0.000
2003 9 20 9/20/03 0.000
2003 9 21 9/21/03 0.000
2003 9 22 9/22/03 0.000
2003 9 23 9/23/03 0.000
2003 9 24 9/24/03 0.000
2003 9 25 9/25/03 0.000
2003 9 26 9/26/03 0.000
2003 9 27 9/27/03 0.000
2003 9 28 9/28/03 0.000
2003 9 29 9/29/03 0.000
2003 9 30 9/30/03 0.000
2003 10 1 10/1/03 0.000
2003 10 2 10/2/03 0.000
2003 10 3 10/3/03 0.000
2003 10 4 10/4/03 0.000
2003 10 5 10/5/03 0.000
2003 10 6 10/6/03 0.000
2003 10 7 10/7/03 0.000
2003 10 8 10/8/03 0.000
2003 10 9 10/9/03 0.000
2003 10 10 10/10/03 0.000
2003 10 11 10/11/03 0.000
2003 10 12 10/12/03 0.000
2003 10 13 10/13/03 0.000
2003 10 14 10/14/03 0.000
2003 10 15 10/15/03 0.000
2003 10 16 10/16/03 0.000
2003 10 17 10/17/03 0.000
2003 10 18 10/18/03 0.000
2003 10 19 10/19/03 0.000
Page F-18
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2003 10 20 10/20/03 0.000
2003 10 21 10/21/03 0.000
2003 10 22 10/22/03 0.000
2003 10 23 10/23/03 0.000
2003 10 24 10/24/03 0.000
2003 10 25 10/25/03 0.000
2003 10 26 10/26/03 0.000
2003 10 27 10/27/03 0.000
2003 10 28 10/28/03 0.000
2003 10 29 10/29/03 0.000
2003 10 30 10/30/03 0.000
2003 10 31 10/31/03 0.000
2003 11 1 11/1/03 0.000
2003 11 2 11/2/03 0.000
2003 11 3 11/3/03 0.000
2003 11 4 11/4/03 0.000
2003 11 5 11/5/03 0.000
2003 11 6 11/6/03 0.000
2003 11 7 11/7/03 0.000
2003 11 8 11/8/03 0.000
2003 11 9 11/9/03 0.000
2003 11 10 11/10/03 0.000
2003 11 11 11/11/03 0.000
2003 11 12 11/12/03 15.002
2003 11 13 11/13/03 0.056
2003 11 14 11/14/03 0.047
2003 11 15 11/15/03 0.039
2003 11 16 11/16/03 0.038
2003 11 17 11/17/03 0.036
2003 11 18 11/18/03 0.035
2003 11 19 11/19/03 0.033
2003 11 20 11/20/03 0.033
2003 11 21 11/21/03 0.031
2003 11 22 11/22/03 0.030
2003 11 23 11/23/03 0.030
2003 11 24 11/24/03 0.029
2003 11 25 11/25/03 0.028
2003 11 26 11/26/03 0.026
2003 11 27 11/27/03 0.025
2003 11 28 11/28/03 0.026
2003 11 29 11/29/03 0.025
2003 11 30 11/30/03 0.024
2003 12 1 12/1/03 0.023
2003 12 2 12/2/03 0.022
2003 12 3 12/3/03 0.021
Page F-19
Year Month Day Date Model Daily
Average Flow Measured Daily Average Flow
Units cfs cfs
2003 12 4 12/4/03 0.020
2003 12 5 12/5/03 0.019
2003 12 6 12/6/03 0.019
2003 12 7 12/7/03 0.018
2003 12 8 12/8/03 0.017
2003 12 9 12/9/03 0.016
2003 12 10 12/10/03 0.016
2003 12 11 12/11/03 0.015
2003 12 12 12/12/03 0.014
2003 12 13 12/13/03 0.014
2003 12 14 12/14/03 0.013
2003 12 15 12/15/03 0.013
2003 12 16 12/16/03 0.012
2003 12 17 12/17/03 0.012
2003 12 18 12/18/03 0.011
2003 12 19 12/19/03 0.011
2003 12 20 12/20/03 0.010
2003 12 21 12/21/03 0.010
2003 12 22 12/22/03 0.009
2003 12 23 12/23/03 0.009
2003 12 24 12/24/03 0.278
2003 12 25 12/25/03 43.532
2003 12 26 12/26/03 0.878
2003 12 27 12/27/03 0.154
2003 12 28 12/28/03 0.146
2003 12 29 12/29/03 0.139
2003 12 30 12/30/03 0.133
Page F-20
Table 2. Modeled Flow vs Measured Flows
Date
Model Daily
Average
Flow -cfs
Observed Daily
Average Flow -
cfs
Percent Difference -%,
difference of observed
from model over
observed
Actual
Difference -cfs,
observed from
model
11/29/01 2.801 18 -84.4% -15.20
2/17/02 7.614 3 153.8% 4.61
3/7/02 0.023 7 -99.7% -6.98
11/8/02 3.241 35 -90.7% -31.76
11/9/02 8.193 43 -80.9% -34.81
11/10/02 0.967 13 -92.6% -12.03
12/16/02 0.010 30 -99.97% -29.99
12/19/02 0.008 5 -99.8% -4.99
2/11/03 50.308 59 -14.7% -8.69
2/25/03 190.710 132 44.5% 58.71
2/26/03 28.383 13 118.3% 15.38
2/27/03 31.744 86 -63.1% -54.26
2/28/03 8.011 31 -74.2% -22.99
3/2/03 4.193 10 -58.1% -5.81
3/3/03 3.367 2 68.4% 1.37
3/4/03 2.781 31 -91.0% -28.22
3/5/03 2.912 45 -93.5% -42.09
3/6/03 2.097 5 -58.1% -2.90
3/7/03 1.839 12 -84.7% -10.16
3/8/03 1.629 20 -91.9% -18.37
3/9/03 1.481 17 -91.3% -15.52
3/10/03 1.373 12 -88.6% -10.63
3/11/03 1.279 8 -84.0% -6.72
3/12/03 1.164 8 -85.5% -6.84
3/13/03 1.088 18 -94.0% -16.91
3/14/03 1.018 10 -89.8% -8.98
Page F-21
Table 3. Modeled Volume vs. Measured Volume
D a te
C h a n g in g M o d e l
V a lu e s to D a ily
V o lu m e , c f
C h a n g in g O b s e rve d
V a lu e s to D a ily
V o lu m e , c f
1 1 /2 9 /0 1 2 4 1 9 9 6 1 5 5 5 2 0 0
2 /1 7 /0 2 6 5 7 8 6 7 2 5 9 2 0 0
3 /7 /0 2 1 9 8 2 6 0 4 8 0 0
1 1 /8 /0 2 2 8 0 0 3 5 3 0 2 4 0 0 0
1 1 /9 /0 2 7 0 7 8 6 7 3 7 1 5 2 0 0
1 1 /1 0 /0 2 8 3 5 1 0 1 1 2 3 2 0 0
1 2 /1 6 /0 2 9 0 4 2 5 9 2 0 0 0
1 2 /1 9 /0 2 7 1 5 4 3 2 0 0 0
2 /1 1 /0 3 4 3 4 6 5 7 7 5 0 9 7 6 0 0
2 /2 5 /0 3 1 6 4 7 7 3 4 4 1 1 4 0 4 8 0 0
2 /2 6 /0 3 2 4 5 2 3 2 6 1 1 2 3 2 0 0
2 /2 7 /0 3 2 7 4 2 6 8 2 7 4 3 0 4 0 0
2 /2 8 /0 3 6 9 2 1 1 8 2 6 7 8 4 0 0
3 /2 /0 3 3 6 2 2 3 9 8 6 4 0 0 0
3 /3 /0 3 2 9 0 9 4 0 1 7 2 8 0 0
3 /4 /0 3 2 4 0 2 4 4 2 6 7 8 4 0 0
3 /5 /0 3 2 5 1 5 9 0 3 8 8 8 0 0 0
3 /6 /0 3 1 8 1 1 4 2 4 3 2 0 0 0
3 /7 /0 3 1 5 8 9 0 3 1 0 3 6 8 0 0
3 /8 /0 3 1 4 0 7 8 1 1 7 2 8 0 0 0
3 /9 /0 3 1 2 7 9 9 3 1 4 6 8 8 0 0
3 /1 0 /0 3 1 1 8 6 5 7 1 0 3 6 8 0 0
3 /1 1 /0 3 1 1 0 5 3 2 6 9 1 2 0 0
3 /1 2 /0 3 1 0 0 5 6 6 6 9 1 2 0 0
3 /1 3 /0 3 9 4 0 0 5 1 5 5 5 2 0 0
3 /1 4 /0 3 8 7 9 4 8 8 6 4 0 0 0
Page F-22
R2 = 0.7035
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
0 5000 10000 15000 20000
Modeled Daily Volumes, CF x 1000
Observ
ed D
aily
Volu
mes, C
F x
1000
Figure 1. Measured Daily Volumes vs Modeled Daily Volumes
Table 4. Modeled Total Volume vs Measured Total Volume
Total
Modeled
Volumes for
26 days, L
Total
Observed
Volumes for
26 days, L
Percent
Difference -%,
difference of
observed from
model over
observed
Actual Difference
-L, observed
from model
876421612 1646496115 47% -770074503
Page F-23
Table 5. Comparison of Modeled and Measured Flows
Mean 14 Mean 26
Median 2 Median 15
25th 1 25th 9
75th 7 75th 31
STDEV 38 STDEV 29
Mean -55% Mean -12
Median -85% Median -10
25th -92% 25th -22
75th -59% 75th -6
STDEV 0.70 STDEV 21
Statistics of Directly Comparable
Model Values to Observed
Values Above CFS of 2.28
(26 Values)
Statistics of Observed Values
Above CFS of 2.28
(26 Values)
Statistics of Percent Differences Statistics of Actual Differences
Page F-24
Table 6. Modeled Water Quality, All Values.
Number Date Flow Total Copper Total Lead Total Zinc
µg/L µg/L µg/L
19004 2/17/94 80.6874 14 14 78
19004 3/24/94 77.9417 6 6 35
19004 4/24/94 15.4465 32 34 175
19004 11/10/94 14.4909 24 24 134
19004 1/11/95 47.9248 5 5 30
19004 2/14/95 285.361 31 31 173
19004 4/16/95 47.6048 32 32 176
19004 11/1/95 24.6359 74 76 408
19004 12/9/96 10.7718 19 18 106
19004 1/16/97 1.78252 1 0 4
19004 12/6/97 51.7472 53 53 294
19004 3/14/98 2.98883 0 0 0
19004 11/8/98 28.7118 41 42 228
19004 1/25/99 88.7292 42 43 231
19004 3/15/99 8.14882 39 39 216
19004 2/12/00 45.11 43 44 237
19004 2/21/00 216.509 22 22 121
19004 3/5/00 79.8623 24 24 134
19004 4/17/00 41.7563 21 22 118
19004 10/27/00 37.9718 28 28 157
19004 1/8/01 28.0362 26 26 142
19004 2/13/01 54.4753 50 50 280
19004 11/12/01 10.5909 17 18 95
19004 11/29/01 2.80088 32 32 175
19004 2/17/02 7.6142 53 54 293
19004 11/8/02 3.24115 33 34 183
19004 2/11/03 50.3076 38 38 206
19004 2/25/03 190.71 23 23 129
19006 2/12/00 13.2766 63 74 316
19006 2/21/00 63.4845 25 28 128
19006 1/8/01 8.38546 31 36 157
19006 2/13/01 16.4391 57 64 293
19006 11/12/01 3.47155 17 20 89
19014 1/8/01 0.866875 27 32 151
19014 2/13/01 1.68843 51 59 292
19014 11/12/01 0.362798 12 14 69
19016 2/12/00 7.75739 33 33 181
19016 2/21/00 37.1424 17 16 93
19016 1/8/01 4.87796 17 17 96
19016 2/13/01 9.55507 38 36 212
19016 11/12/01 1.94136 11 10 58
19018 1/8/01 11.6857 22 19 125
19018 2/13/01 22.7255 46 40 267
19018 11/12/01 4.22921 16 14 91
19024 2/12/00 30.7277 40 38 221
Page F-25
Number Date Flow Total Copper Total Lead Total Zinc
µg/L µg/L µg/L
19024 2/21/00 150.342 21 20 120
19024 1/8/01 18.9028 28 26 154
19024 2/13/01 37.2259 50 47 282
19024 11/12/01 7.10023 18 17 102
19026 1/8/01 14.8463 25 23 140
19026 2/13/01 29.3028 48 44 275
19026 11/12/01 5.99581 16 15 91
19028 2/12/00 9.20883 60 60 332
19028 2/21/00 44.0897 28 27 159
19028 1/8/01 5.8327 31 30 169
19028 2/13/01 11.6731 60 56 334
19028 11/12/01 2.49796 15 15 85
19035 2/12/00 2.48031 20 18 110
19035 2/21/00 11.9094 11 10 64
19035 1/8/01 1.57353 10 9 58
19035 2/13/01 3.18453 24 22 134
19035 11/12/01 0.668691 6 6 35
Table 7. Observed Water Quality, All Values. Subwatershed
Number
Date Total Copper Total Lead Total Zinc
µg/L µg/L µg/L
19004 2/17/94 34 110 260
19004 3/24/94 29 140 240
19004 4/24/94 44 70 320
19004 11/10/94 36 35 180
19004 1/11/95 17 44 150
19004 2/14/95 40 110 360
19004 4/16/95 85 140 560
19004 11/1/95 46 23 25
19004 12/9/96 20 16 70
19004 1/16/97 10 58 200
19004 12/6/97 28 42 110
19004 3/14/98 28 95 92
19004 11/8/98 6 1 30
19004 1/25/99 5 7 48
19004 3/15/99 15 82 210
19004 2/12/00 29 15 96
19004 2/21/00 16 1 50
19004 3/5/00 16 1 50
19004 4/17/00 14 5 80
19004 10/27/00 27 22 150
19004 1/8/01 57 69 255
19004 2/13/01 16 25 110
19004 11/12/01 97 94 740
19004 11/29/01 27 28 162
19004 2/17/02 53 32 314
Page F-26
Subwatershed
Number
Date Total Copper Total Lead Total Zinc
µg/L µg/L µg/L
19004 11/8/02 28 17 118
19004 2/11/03 33 29 230
19004 2/25/03 16 23 154
19006 2/12/00 68 34 160
19006 2/21/00 23 23 180
19006 1/8/01 52 91 420
19006 2/13/01 16 29 100
19006 11/12/01 49 39 370
19014 1/8/01 36 21 230
19014 2/13/01 19 18 110
19014 11/12/01 37 12 200
19016 2/12/00 68 52 300
19016 2/21/00 19 19 160
19016 1/8/01 65 90 480
19016 2/13/01 15 21 110
19016 11/12/01 45 52 300
19018 1/8/01 70 68 660
19018 2/13/01 38 53 280
19018 11/12/01 42 29 340
19024 2/12/00 33 83 327
19024 2/21/00 19 26 81
19024 1/8/01 56 59 360
19024 2/13/01 41 61 280
19024 11/12/01 32 19 180
19026 1/8/01 32 27 190
19026 2/13/01 17 23 120
19026 11/12/01 170 270 1400
19028 2/12/00 43 76 370
19028 2/21/00 27 35 10
19028 1/8/01 37 29 260
19028 2/13/01 33 59 270
19028 11/12/01 180 170 1900
19035 2/12/00 23 16 100
19035 2/21/00 10 10 54
19035 1/8/01 32 19 160
19035 2/13/01 10 9 55
19035 11/12/01 49 36 290
Page F-27
Table 8. Percent Differences for Water Qualities with Flows Over 2.28 cfs. Subwatershed
Number Date Total Copper Total Lead Total Zinc
% % %
19004 2/17/94 -59% -87% -70%
19004 3/24/94 -78% -95% -85%
19004 4/24/94 -27% -51% -45%
19004 11/10/94 -33% -32% -25%
19004 1/11/95 -68% -88% -80%
19004 2/14/95 -22% -72% -52%
19004 4/16/95 -63% -77% -69%
19004 11/1/95 62% 231% 1534%
19004 12/9/96 -6% 15% 51%
19004 12/6/97 89% 26% 167%
19004 3/14/98 -100% -100% -100%
19004 11/8/98 591% 4097% 660%
19004 1/25/99 741% 513% 381%
19004 3/15/99 161% -52% 3%
19004 2/12/00 49% 195% 147%
19004 2/21/00 37% 2105% 142%
19004 3/5/00 50% 2292% 168%
19004 4/17/00 53% 335% 47%
19004 10/27/00 5% 28% 4%
19004 1/8/01 -54% -62% -44%
19004 2/13/01 215% 106% 154%
19004 11/12/01 -82% -81% -87%
19004 11/29/01 18% 14% 8%
19004 2/17/02 1% 68% -7%
19004 11/8/02 19% 99% 55%
19004 2/11/03 14% 32% -10%
19004 2/25/03 45% 1% -16%
19006 2/12/00 -8% 116% 97%
19006 2/21/00 8% 22% -29%
19006 1/8/01 -40% -61% -63%
19006 2/13/01 255% 119% 193%
19006 11/12/01 -64% -49% -76%
19016 2/12/00 -51% -37% -40%
19016 2/21/00 -10% -14% -42%
19016 1/8/01 -73% -81% -80%
19016 2/13/01 156% 73% 93%
19018 1/8/01 -69% -73% -81%
19018 2/13/01 21% -25% -5%
19018 11/12/01 -63% -53% -73%
19024 2/12/00 20% -54% -32%
19024 2/21/00 12% -23% 49%
19024 1/8/01 -51% -56% -57%
19024 2/13/01 22% -24% 1%
19024 11/12/01 -43% -10% -43%
19026 1/8/01 -23% -14% -26%
Page F-28
Subwatershed
Number Date Total Copper Total Lead Total Zinc
% % %
19026 2/13/01 183% 92% 129%
19026 11/12/01 -91% -95% -94%
19028 2/12/00 41% -21% -10%
19028 2/21/00 5% -24% 1489%
19028 1/8/01 -17% 4% -35%
19028 2/13/01 81% -5% 24%
19028 11/12/01 -91% -91% -96%
19035 2/12/00 -14% 12% 10%
19035 2/21/00 15% 4% 19%
19035 2/13/01 141% 143% 145%
Page F-29
Table 9. Actual Differences for Water Qualities with Flows Over 2.28 cfs. Subwatershed
Number Date Total Copper Total Lead Total Zinc
µg/L µg/L µg/L
19004 2/17/94 -20 -96 -182
19004 3/24/94 -23 -134 -205
19004 4/24/94 -12 -36 -145
19004 11/10/94 -12 -11 -46
19004 1/11/95 -12 -39 -120
19004 2/14/95 -9 -79 -187
19004 4/16/95 -53 -108 -384
19004 11/1/95 28 53 383
19004 12/9/96 -1 2 36
19004 12/6/97 25 11 184
19004 3/14/98 -28 -95 -92
19004 11/8/98 35 41 198
19004 1/25/99 37 36 183
19004 3/15/99 24 -43 6
19004 2/12/00 14 29 141
19004 2/21/00 6 21 71
19004 3/5/00 8 23 84
19004 4/17/00 7 17 38
19004 10/27/00 1 6 7
19004 1/8/01 -31 -43 -113
19004 2/13/01 34 26 170
19004 11/12/01 -80 -76 -645
19004 11/29/01 5 4 13
19004 2/17/02 0 22 -21
19004 11/8/02 5 17 65
19004 2/11/03 5 9 -24
19004 2/25/03 7 0 -25
19006 2/12/00 -5 40 156
19006 2/21/00 2 5 -52
19006 1/8/01 -21 -55 -263
19006 2/13/01 41 35 193
19006 11/12/01 -32 -19 -281
19016 2/12/00 -35 -19 -119
19016 2/21/00 -2 -3 -67
19016 1/8/01 -48 -73 -384
19016 2/13/01 23 15 102
19018 1/8/01 -48 -49 -535
19018 2/13/01 8 -13 -13
19018 11/12/01 -26 -15 -249
19024 2/12/00 7 -45 -106
19024 2/21/00 2 -6 39
19024 1/8/01 -28 -33 -206
19024 2/13/01 9 -14 2
19024 11/12/01 -14 -2 -78
19026 1/8/01 -7 -4 -50
Page F-30
Subwatershed
Number Date Total Copper Total Lead Total Zinc
µg/L µg/L µg/L
19026 2/13/01 31 21 155
19026 11/12/01 -154 -255 -1309
19028 2/12/00 17 -16 -38
19028 2/21/00 1 -8 149
19028 1/8/01 -6 1 -91
19028 2/13/01 27 -3 64
19028 11/12/01 -165 -155 -1815
19035 2/12/00 -3 2 10
19035 2/21/00 1 0 10
19035 2/13/01 14 13 79
Page F-31
Table 10. Water Quality Statistical Summary of Modeled and Observed Data Sets and
Percent and Actual Differences.
Statistics of
Modeled
Values
(55 values)
Copper -
ug/LLead -ug/L Zinc -ug/L
Statistics of
Modeled
Values that
directly
compared to
Observed
Values
(55 values)
Copper -ug/L Lead -ug/L Zinc -ug/L
Mean 31 31 170 Mean 39 51 270
Median 28 28 157 Median 32 32 180
25th 19 18 100 25th 18 22 100
75th 40 45 317 75th 45 70 320
Statistics of
Percent
Differences
(55 Values)
Copper -% Lead -% Zinc -%
Statistics of
Actual
Differences
(55 Values)
Copper -ug/L Lead -ug/L Zinc -ug/L
Mean 33% 166% 76% Mean -8.1 -20.0 -96.5
Median 5% -14% -10% Median 1.3 -3.1 -23.9
25th -51% -55% -55% 25th -21 -41 -132
75th 47% 71% 74% 75th 8.5 14.1 68.0
Table 11. Calculated Loads for Modeled and Observed Values. Sub
watershed
Number Date Flow Volume
Total
Copper Total Lead Total Zinc Total Copper Total Lead Total Zinc
Modeled Modeled Modeled Observed Observed Observed
Units L g g g g g g
19004 11/29/01 6,852,360 217 219 1197 185 192 1110
19004 2/17/02 18,628,159 992 1003 5452 987 596 5849
19004 11/8/02 7,929,481 264 268 1451 222 135 936
19004 2/11/03 123,077,664 4629 4724 25361 4062 3569 28308
19004 2/25/03 466,572,473 10789 10856 60216 7465 10731 71852
Table 12. Percent and Actual Differences Between Model and Observed Values in Table B-11.
Subwatersh
ed Number Date
Total
Copper Total Lead Total Zinc Total Copper Total Lead Total Zinc
Percent
Difference
Percent
Difference
Percent
Difference
Actual
Difference
Actual
Difference
Actual
Difference
Units % % % g g g
19004 11/29/01 18% 14% 8% 32.48 27 87
19004 2/17/02 0.5% 68% -7% 5.0 407 (397)
19004 11/8/02 19% 99% 55% 42.27 132.8 515
19004 2/11/03 14% 32% -10% 567 1,154 (2,947)
19004 2/25/03 45% 1.2% -16% 3,324 125 (11,636)
